Which of the following is $NOT$ an ore of iron?

Which element exists in the free state mainly?

Match the following minerals in List-$I$ with their chemical formulas in List-$II$.

List-$I$	List-$II$
$(A)$ Feldspar	$(I)$ $[Ag_3SbS_3]$
$(B)$ Asbestos	$(II)$ $Al_2O_3 \cdot H_2O$
$(C)$ Pyrargyrite	$(III)$ $MgSO_4 \cdot H_2O$
$(D)$ Diaspore	$(IV)$ $KAlSi_3O_8$
	$(V)$ $CaMg_3(SiO_3)_4$

Which ore is used for the manufacture of iron?

Match the following List-$I$ (Name of the mineral) with List-$II$ (Type):
| List-$I$ | List-$II$ |
| :--- | :--- |
| $A$. Calamine | $I$. Sulphide |
| $B$. Bauxite | $II$. Halide |
| $C$. Kaolinite | $III$. Carbonate |
| $D$. Cryolite | $IV$. Oxide |
| | $V$. Silicate |

$FeS_2$ is also known as $'$Fools gold$'.$